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Technics EAH-AZ100 Review

Glitchy calls undercut the benefits of the epic battery and great noise cancellation
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Technics EAH-AZ100 Review
Credit: Natalie Kafader
Price:  $300 List
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Manufacturer:   Technics
Rachael Lamore
By Rachael Lamore ⋅ Senior Review Analyst  ⋅  November 25, 2025
Contributions From: Lissette Velasquez
70
OVERALL
SCORE


RANKED
#11 of 24
  • Sound Quality - 35% 7.6
  • Comfort & Fit - 25% 6.5
  • Noise Cancellation - 20% 7.8
  • App Features - 10% 8.0
  • Call Quality - 10% 3.2

Our Verdict

Although the Technics EAH-AZ100 offer better sound and noise blocking than most, they don't quite complete the package. The hefty price tag includes a mediocre fit and surprisingly poor call quality. Their rich, bass-heavy sound has incredible clarity, never sounding muddied. Plus, highly effective active noise cancellation (ANC) helped create one of the most immersive soundscapes we've ever experienced. However, despite being smaller than the former AZ80, these snug-fitting buds still feel bulky. And forget making phone calls, our voices repeatedly cut out. While the whopping 14.7-hour battery life will last all day, your ears and patience on calls won't.
REASONS TO BUY
Marathon battery
Impressive ANC
Feature-rich
Pairs with 3 devices
REASONS TO AVOID
Horrible calls
Not comfy
Expensive

Our Technics EAH-AZ100 Experience



technics eah-az100 - the technics offer a marathon battery life, and the case extends it...
The Technics offer a marathon battery life, and the case extends it even further.
Credit: Natalie Kafader

The Technics case and buds are bulky. It feels somewhat “old-school” in a way that is hard to describe until you hold it in your hand. We liked the metallic-looking finish on the outside of the buds, but the case itself is uninspired and blah. However, we didn't come here for the case, so we can ignore its size and be grateful it's small enough for most pockets.

The Technics come with a USB-C charging cord and five silicone tips. The tips have a foam backing in the gap, which is unique to these buds and may be why we felt a little claustrophobic while wearing them. The buds feel big, and while not the heaviest in the group, they aren't light either. The bud's nozzle has a light sensor nearby that tells the bud if it is being worn. They have touch controls on the buds that include play/pause, volume, track skipping, voice assistant, and switching noise cancellation modes.

technics eah-az100 - the technics bulky exterior isn't exactly weightless, and it takes...
The Technics bulky exterior isn't exactly weightless, and it takes up a lot of ear real estate.
Credit: Natalie Kafader

We felt the fit was stable enough for short trail runs or mountain bike rides, but it isn't as confidence-inspiring as those with some supportive feature like a wing or a hook. Once again, the bulkiness made us nervous; while they stayed put during lighter activities like washing dishes or holding a downward dog pose, we wouldn't choose them for workout sessions where quick movements or lateral leaps might be involved.

Pairing the Technics was simple and required opening the case so devices nearby could detect them. You can also engage manual pairing by holding the backs of both buds simultaneously until the pairing prompt appears on your device. We didn't have any connectivity issues. These buds also boast an impressively long battery life of over 14 hours! This was plenty of time for us to commute, work, work out, and head back home, though many of us required a break around 6 hours of wearing to ease discomfort.

technics eah-az100 - despite its poorly designed layout, the technics app offers several...
Despite its poorly designed layout, the Technics app offers several useful features that function well.
Credit: Natalie Kafader

The Technics work in conjunction with an app that has a fairly clunky user interface. However, we did long all the personalized touches. The ear fit test selects a sound mix tailored to each unique ear shape, while an 8-band equalizer (EQ) and a range of presets allow for fine-tuning sound. Additionally, it features spatial audio with head tracking and a noise-cancelling slider. We particularly appreciated the ability to adjust the volume on notifications, a feature we didn't find on all competitors.

Occasionally, we got a bit of that plugged-up feeling from the ANC, like there was a tiny plunger in our ears. Luckily, the ANC is fully adjustable to help mitigate this side effect, or let ambient sounds in, with Technics' impressively natural and lifelike passthrough mode.

technics eah-az100 - the technics would not be our first pick for making phone calls, as...
The Technics would not be our first pick for making phone calls, as they lack clarity and occasionally cut off altogether.
Credit: Natalie Kafader

Placing phone calls was the real bummer with these buds. We struggled in all environments, and often the voices cut out completely. This was more than a “Can you hear me now?” issue and resulted in us giving up on phone calls altogether. While we know many people almost never take a call, the Technics performance was so bad that we couldn't even if we wanted to.

The Technics offer compelling sound, noise cancellation, and battery life, making them a compelling choice for frequent flyers. But with the higher price, poor call quality, and average fit, they weren't a favorite. With some minor tweaks, the Technics would be a top contender. For now, we think there are better values for most premium shoppers.

If you don't like frequent charging, the slightly cheaper Sony WF-1000XM5 offers a 14-hour battery life and top-notch ANC and comfort, although the audio quality falls somewhat short. For a better all-around value, the lower-priced Apple AirPods Pro 2, Apple AirPods Pro 3, and Google Pixel Buds Pro 2 are more comfy and have better call quality without sacrificing sound and noise blocking.

Our Analysis and Test Results



technics eah-az100 - in the lab and on the trail, we put these popular earbuds through...
In the lab and on the trail, we put these popular earbuds through the wringer to see if they live up to the hype.
Credit: Natalie Kafader


Sound Quality


The Technics deliver a cleaner, more immersive sound than most competitors; however, the lackluster shine of bright instruments held it back.


The overall mix leans towards a neutral sound, with a distinctive bass presence. The subtly emphasized lows add a pleasant thump and rumble to hip-hop anthems without overpowering. Unlike a teenager's robust car speakers, these earbuds deliver tight, precise, controlled attacks, without muddied distortion.

The mids are equally charming, delivering rich, detailed vocals in stripped-down acoustic ballads. The breathwork of the singer and the clang of the strings from a powerfully strummed guitar chord come through. In some bass-heavy tracks, though, the singer's voice sounded a touch distant, as if it were taking a backseat to the punchy percussion.

We loved sinking into the rich, smooth sound of the Technics, even if the highs fall flat.
Credit: Natalie Kafader

The highs sound mostly superb, but to the discerning ear, they don't shine to their full potential. Instruments like harmonicas and flutes never reached that flinch-inducing harshness; we wish they had more presence and character. It's as if the music is missing that extra special something, which could be a disappointment for audiophiles seeking top-tier sound.

We hop into the sound quality using professional audio equipment.
Credit: Natalie Kafader

We took a closer inspection by charting the frequency response to learn more about the sound mix.


The lows are consistently elevated above our preferred curve, while the highs track it more closely. This makes the music sound rather dark, with prominent lows stealing the show and recessed highs competing for the limelight.

Soundstage


While the sound mix didn't completely blow us away, the soundstage did. The AZ100 delivers one of the most immersive listening experiences we've ever tested. These earbuds make music sound broad and expansive. Instruments are spread across a three-dimensional space in clean, defined layers, creating a captivating soundscape. It feels like the musicians are right there, an impressive feat most buds struggle to attain.

technics eah-az100 - more size options than the competition means better odds of a...
More size options than the competition means better odds of a perfect fit.
Credit: Natalie Kafader

Comfort and Fit


Five flexible silicone tip sizes, ranging from XS to XL, ensure that ear canals of all sizes can find the perfect fit. Still, the rather large, stiff metal casing that rests outside the ear feels bulky. While not completely off-putting, we were always very aware that we had something clunky wedged in there.

Impressive ANC helps improve focus for students or professionals.
Credit: Natalie Kafader

Noise Cancellation


Although not quite industry-leading, as Technics' claims suggest, the AZ100 does a pretty good job of tuning out everyday annoyances.

ANC Performance by Frequency Range
ProductLowMidHigh
Best30.729.733.8
Technics EAH-AZ10025.526.726.3
Average16.320.326
Worst0.00.01.0


Thanks to highly effective active noise cancellation (ANC), we didn't have to listen to background conversations at the office or loud construction noise while running outdoors.

In this snippet, you can hear just how much sound is blocked out by the Technics' ANC.
Credit: Natalie Kafader

Mid- and high-pitched sounds, like these, were almost entirely blocked, while some lower-pitched sounds, such as rumbling car engines or garage doors, had a muffled presence.

The Technics' app includes everything you need, and then some.
Credit: Natalie Kafader

App Features


Everything, from the sound to the ANC to the touch controls, is fully customizable with the Audio Connect app, making the AZ100 one of our favorites for bonus features. They can even connect to three devices at once, making them an excellent choice for multitaskers juggling work between their laptop, tablet, and phone.

If you misplace your buds, the app has two features to help you find them. You can have them chirp or use Find My to view their last detected location. The two-tiered safety net isn't something we often see, and it gave us extra peace of mind.

technics eah-az100 - the technics' extensive battery life lasts all day, and then some.
The Technics' extensive battery life lasts all day, and then some.
Credit: Natalie Kafader

Battery Life


With ANC off, the Technics ran for an impressive 14 hours and 40 minutes, nearly three hours longer than the claimed 12-hour battery life. It's one of the best on the market today, ensuring you're not stuck finishing your workout or commuting home without your favorite playlist or podcast.


All-day listeners or frequent travelers will appreciate the AZ100's lengthy battery life. When it's time to recharge, the case's battery offers two full charges. The case can be charged wirelessly or via a wired connection, adding extra convenience to your life.

While we couldn't hear much background noise, the voice quality is truly terrible.
Credit: Natalie Kafader

Call Quality


Despite the new Voice Focus AI and six dedicated microphones, the AZ100 failed to deliver clear calls. Even after multiple test attempts in quiet rooms, our voices sounded choppy and garbled. Most premium-priced earbuds offer significantly better clarity.

Just yuck. Our ears hurt trying to listen to friends calling from noisy environments.
Credit: Natalie Kafader

In a call from a subway, the caller's voice is so distorted that it's difficult to understand. Calling from a much quieter office wasn't any better.

Side-by-Side Comparison
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Rachael Lamore & Lissette Velasquez


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